GuyE

Hi I have a weird problem to do with browsing mapped drives across a network that I hope you can help with. In short, browsing one specific mapped drive from XP clients is very slow but fine on Windows 7 clients. The server is just over a year old running Windows 2008 R2 with all patches other than SP1. The NIC is an Intel 82575EB. As part of the initial setup I disabled global autotuning. The server contains all of our user’s home folders in a standard setup. Student home folders sit under: D:\HomeStudents\Yr7\.. D:\HomeStudents\Yr8\.. etc up to Yr13 with approximately 200 user folders in each year level, each shared and ACLed in the usual way. Each student has P: drive mapped to their home folder share through the home folder setup in their AD account. Each staff member has H: drive mapped to D:\HomeStudents to allow them to browse all student home folders. This is read only access by virtue of ACL permissions on the D:\HomeStudents folder than are inherited by all subfolders. Staff also have other drive letters mapped to various shares on the server, including some on the same physical disk array. Nobody has any problem browsing their own P drive and when a staff member browses any drive mapped to this server from a Windows 7 client, including H:, there are no performance issues at all. When a staff member browses the same drives from an XP client (SP3 & all patched up) everything is almost instantly displayed for all drives, except H:. When they browse the student folders in the year level folders under H: it takes approximately 25 seconds to display the contents – the flashing torch scenario. I suspect it is something to do with the networking setup on this one server but don’t know where to go from here. Thanks for your help, Guy